Vehicle-brake.



EATENTED APEfz, 1907.- E. E. LUKENs`& I. s. .DIEEE VEHICLE BRAKE.APPLICATION FILED HAY 22, 1906.

2 SHEETS-SHEET l.

. FICTI.

INVENToRs: i? f No. 848,668i A PATENTED APR. 2, 1907. B. P. LUKENS & I.s. DIBHL.

A VEHICLE BRAKE. APPLIQATION FILED MAY 22, 190e.

. FICH/ Flaw UNITED STATE-s yParam* vonineif.

BALrrs 1?. LUKnNs AND isADoRE Dini-1L, or ALLENTOWN,

PENNSYLVANLA.

` VEHICLE-BRAKE.

No. 848,668. A

To all whom, it may concern:

Beit known that we, BALTIs P. LUKENS and IsADoRE S. DIEHL, of Allentown,in the county of Lehigh and State' of Pennsylvania, have inventedcertain new and useful Imrovements in' Vehicle-Brakes, whereof thefollowing is aspeciiication, reference being tion-studs so sharpened asto dig into saidv rail when forced into contact therewith.

l We have chosen to illustrate our invention as applied to an'ordinarystreet-railway car; but it is to be noted that it is applicable toothertypes of vehicles.

Our invention comprehends the various novel features 'of constructionand arrangementhereinafter more definitely specified.

In the accompanying drawings, Figure I shows in side. elevation theforward portion of a car to which our invention is applied. F II is arear elevation of those parts which include our invention. Fig. III is acentral vertical longitudinal section of the brakeshoe. `Fig. V is aninverted plan view of said brake-shoe- Fig. V is a sectional view of oneform of the friction-studs employed in said shoe. Fig. VI is anelevational view oi' another form of friction-stud employed in said shoefor the same purpose.

In said drawings, l is the forward end of a car,1om the underraming of'which depend hangers 2 2, carrying a rock-shaft 3, which is providedwith arms 4, corresponding in ver- -tieal planes to the rails upon whichthe vehicle runs. To each of said arms 4 is pivotcd a link 5, which isin turn pivoted to the b`rake shoe 6. and link 5 thus form atoggle-joint, whereby the rotatitm ol. the rock-shaft 3 in the directionindicated by the arrow in. Fig. I forces the brake-shoe into rictionalengagement with the rail.

Upon the shaft 3 is secured the el1ainwheel 7, which is connected by thechain b to Specification of Letters Patent.

Application iled May 22. 1906. Serial Nol 318,127.2"

As best shown in Fig. Itthe arm 4f APatented April 2, 1907.

the lower end ofthe brakerod 9, arranged to be rotated to wind saidchain thereon and to thereby rotate the wheel 7 and shaft 3 to 'depressthe brakes in opposition to the tension of the 'spring 10, whichnormally tends t0 .maintain the brake mechanism in inoperative pos1t1on.Y

In order to malntam the brake-shoes in proper operative relation with,the rails,

there is pivoted to the forward end of each of said shoes a rod 12,whose length is conven iently adjusted bythe turnbuckle 13 and whoseforward end is pivoted to its respectivehanger 15, depending frombeneath the forward end of the platform of the car.

Referring now to Fig. III of the drawings, wherein the pivotalconnection with the shoe 6 of the supporting-link 5 and rod 12 areclearly shown, it may be seen that the brakeshoe proper consists of ametal block having a plate 20 set within a recess 21 in its lower faceand united to it by bolts 22 22. Said plate 20 is provided with aplurality of aperand 25 extend, each being provided with a head 26,which is countersunk within the plate,.whereby they are held inposition.

The lower end of each of the studs, of which 'we have shown two forms,projects through the friction-plate so as to bear directly upon the railwhen the brake is applied. In one form the lower end of the stud 24 isrecessed centrally, as shown in F ig. V, which provides a sharpenedcircular rim arranged to contact with the rail. In the other vform(shown in Fig. VI) the stud 25 is pointed.

These studs may be formed of hardened steel or other suitable Vmetal andare readily made in large quantities, and 'as they are readily replacedit is obvious that as soon as those carried by the brake become. worndown so as to lose their holding power others may be substituted.

The brake-shoe (i is further provided with aside ll ange 2S, dependingfrom its inner edgeand arranged to slideI along the inner side oiT therail to maintain said shoe at all times in proper longitudinal relationwith said rail.

' We do not desire to limit ourselves to the precise details ofconstruction and arm-ingement herein set lortli, as it is obvious thatvarious modifications may be made therein without departing trom theessr-fntinl features ol our invention.

tures 23, through which the friction-studs 24 v We claim- 1. avehiolefbrake, the combination of the vbrake-shoe; of means arranged topress #said shoe-against the rail upon which the vejhic-le runs;aremovable face-plate for s aid shoe;4 and a plurality of replaceablefrictionstuds held in place by said face-plate, sub.-

. Stantially las set forth.

. 2. In ya vehiolebrake, the combination. with a brake-shoe supportedirl/proximity to the surfatraversed by said vehicle, and loeatd betweena Wheel andthe end of the vehicle; of a shaft journaled above said shoe;an 'arm on said shaft; -a link connecting said shoe and arm; and arodextending from said 'l shoe to the under side of the vehicle, wherebys'V substantially as set forth.

4. In a vehiele-V brake, the combination l with abrae'eshoe; Vof a'removableface:'.plate` Witnesses.:

for said shoe; and a plurality of edged frietional studs passingt-hroughand secured in place by said face-plate, substantially as set forth.

i 5. In a vehicle-brake, the combination with a brake-shoe of a platesecured to said shoe; a plurality of shouldered apertures in said'plate;and shouldered edged friotional -studs seated in'said apertures,arraneedto friction'ally engage a relatively movabile surfa'ce, whensaid shoe is shifted, substantially as set forth.

y 6. In a vehicle-brake,4 the combination with a brake-shoe of a platesecuredto said shoe; a plurality of pointed studs; heads on said studsopposed to said points and arranged to be engaged by said plate; andmeans arranged to shift said shoe to engage said points with arelatively movable surface.

yIn testimony Whereof We have hereunto signed our names, at Allentown,in the State of Pennsylvania7 this 18th day of May7 1906.

BALTIS P. LUKENS. ISADORE S. DIEHL.

AMADEs F. HENNINGER, 5 Tiros. 0. Grnirrnes.. v

